JNTU
JNTU B.Tech III COMPUTER ORGANIZATION AND OPERATING SYSTEMS Previous Question Paper (August/September - 2024 - R13)
Part A is compulsory (25 marks). In Part B, answer any one question from each unit (50 marks).
Part A
Define micro instruction.
Answer
A micro instruction is a symbolic representation of a micro-operation, which specifies one or more control signals to be activated during a single clock cycle in a processor's control unit.
What is meant by multiprogramming?
Answer
Multiprogramming is an operating system technique that keeps multiple programs in main memory simultaneously. By switching the CPU between these processes, it ensures the processor is never idle while waiting for I/O operations, thereby increasing overall system throughput and CPU utilization.
What is hit ratio?
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Write the uses of virtual memory.
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What is Input-Output interface?
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How does interrupt differ from a trap?
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What is meant by fragmentation?
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Define operating system.
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What is i-node?
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List out file attributes.
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Part B
Identify the instruction formats along with suitable examples.
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Illustrate arithmetic and logical micro-operations in detail.
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Explain various addressing modes with example.
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What is STACK? Explain its organization.
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Explain Random access memory and Read only memory.
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Describe Cache memory mapping techniques.
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With a neat block diagram, explain in detail the microprogrammed control unit and explain its operations.
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Explain in detail about address sequencing.
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Explain how the system handles interrupts? Discuss how various types of interrupts can be handled?
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Explain the various types of serial communication protocols in detail.
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Discuss in detail about Input-Output Processor.
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Explain data transfer modes in DMA.
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Write the services of an operating system.
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What is multi-processing and multi programing system and write their advantages.
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Define a deadlock. Explain the necessary conditions for a deadlock to occur.
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Explain FIFO page replacement algorithm with an example.
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Explain about file operations in detail.
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Describe file access methods in detail.
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What is the role of mounting in a file system? How does mounting take place in the different operating systems? Explain with an example.
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Discuss free space management techniques for disks.
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